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问带"5“参数错误的"InvokeMember”
EN

Stack Overflow用户

提问于 2022-09-07 02:09:31

回答 2查看 83关注 0票数 0

我经常遇到一个带有5个参数错误的InvokeMember，但我相信这与我的路径有关。我想从脚本文件夹所在的任何位置从任何计算机运行此命令。

$ScriptDir = Split-Path $MyInvocation.MyCommand.Path
$ScriptName = $MyInvocation.MyCommand.Name

Function Get-MsiDBVersion {
param (
    [string] $fn
)
try {
    $FullPath = (Resolve-Path $fn).Path 
    $windowsInstaller = New-Object -com WindowsInstaller.Installer
    $database = $windowsInstaller.GetType().InvokeMember(
            "OpenDatabase","InvokeMethod", $Null, 
            $windowsInstaller, @($Fullpath, 0)
        )
    $q = "SELECT Value FROM Property WHERE Property = 'ProductVersion'"
    $View = $database.GetType().InvokeMember(
            "OpenView", "InvokeMethod", $Null, $database, ($q)
        )
    $View.GetType().InvokeMember("Execute", "InvokeMethod", $Null, $View, $Null) | Out-Null
    $record = $View.GetType().InvokeMember(
            "Fetch", "InvokeMethod", $Null, $View, $Null
        )
    $productVersion = $record.GetType().InvokeMember(
            "StringData", "GetProperty", $Null, $record, 1
        )
    $View.GetType().InvokeMember("Close", "InvokeMethod", $Null, $View, $Null) | Out-Null
    return $productVersion
} catch {
    throw "Failed to get MSI file version the error was: {0}." -f $_
}
}

$Program = @{
Installer = "$ScriptDir\Program.exe"
Version = (get-item "$ScriptDir\Program.exe").VersionInfo.FileVersion.TrimEnd()
Arguments = "/SILENT /ALLUSERS /NORESTART"
Exe = "C:\Program Files (x86)\Program.exe"
ExeVersion = (Get-ChildItem $RegUninstall32 -ErrorAction SilentlyContinue | where name -like "*program*" | Get-ItemProperty ).DisplayVersion
}

powershell

windows-installer

回答 2

Stack Overflow用户

发布于 2022-09-07 14:55:15

您需要将完整的文件系统本机路径传递到.msi文件到WindowsInstaller.Installer COM对象(Windows安装程序COM自动化接口 )，因为PowerShell的当前目录(位置)通常不同于其他进程内环境，即.NET和COM使用的非托管进程。

- While `$FullPath = (Resolve-Path $fn).Path` is an _attempt_ to get the full path from a potentially relative one, it isn't _robust_, because the resolved path may be based on a _PowerShell-only_ drive (created with `New-PSDrive`), which the outside world knows nothing about.

- Instead, use [`Convert-Path`](https://learn.microsoft.com/powershell/module/microsoft.powershell.management/convert-path) `-LiteralPath $fn`, which returns a _file-system-native_ path, as known to all environments.

- In either case, the resolving is based on the _current location_, as reflected in `$PWD` / `Get-Location`.

没有必要通过.GetType().InvokeMember()使用反射来调用方法并访问Windows对象公开的类型的实例的属性--照例直接调用/访问它们。(实际上，我无法让基于反射的代码工作。)

因此，下列各项应能发挥作用：

Function Get-MsiDBVersion {
  param (
    [string] $LiteralPath
  )
  try {
    # Convert to a full, native path.
    $fullPath = Convert-Path -ErrorAction Stop -LiteralPath $LiteralPath
    $windowsInstaller = New-Object -ComObject WindowsInstaller.Installer
    $database = $windowsInstaller.Opendatabase($fullPath, 0)
    $q = "SELECT Value FROM Property WHERE Property = 'ProductVersion'"
    $view = $database.OpenView($q)
    $null = $View.Execute()
    $record = $View.Fetch()
    $productVersion = $record.StringData(1)
    $null = $View.Close()
    return $productVersion
  }
  catch {
    throw "Failed to get MSI file version; the error was: {0}." -f $_
  }
}

票数 1

Stack Overflow用户

发布于 2022-09-07 06:35:01

我不知道您目前的目标是什么，但是如果您想获得有关MSIpackages的信息，可以这样做：

Get-CimInstance -query "select * from win32_product"

您的查询不起作用--您的代码：

$q = "SELECT Value FROM Property WHERE Property = 'ProductVersion'"

语法必须是：

"Select [Property] from [class] where [property] = [propertyvalue]"

例如：

get-ciminstance -query "select version,installState,Description,version,IdentifyingNumber from win32_product where Name = 'Blender'"

产出：

Name                  : Blender
Version               : 2.82.1
InstallState          : 5
Caption               :
Description           : Blender
IdentifyingNumber     : {EDFAE2A8-E73B-4CD1-9648-46A7E4434BDA}

票数 -1

页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持

原文链接：

https://stackoverflow.com/questions/73629365

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